Home / 7,520.37-11,278.72-3,137.86

Finding the Fourth Proportional to 7,520.37, 11,278.72 and 3,137.86

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Solution

The fourth proportional to 7,520.37, 11,278.72 and 3,137.86 is: 4,706.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.37 : 11,278.72 = 3,137.86 : x
  2. Step 2: Convert to fraction form
    7,520.37/11,278.72 = 3,137.86/x
  3. Step 3: Cross multiply
    7,520.37x = 11,278.72 × 3,137.86
  4. Step 4: Simplify right side
    7,520.37x = 35,391,044.34
  5. Step 5: Solve for x
    x = 35,391,044.34/7,520.37
  6. Step 6: Final answer
    x = 4,706.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.